T.S. v. Secretary of Health & Human Services, No. 21-1866 (Fed. Cir. 2022)Annotate this Case
In 2009, six-month-old Trystan received vaccines, including DTaP-HepB-IPV. Hours later, Trystan developed a fever and was in pain; he developed a hot lump on his thigh. Trystan’s mother took him to urgent care, where he was diagnosed with a “common cold.” Trystan’s arm contortions continued. At his one-year exam, Trystan could not stand, crawl, grasp, hold his head up while sitting, or attempt to move his lower extremities. Trystan received additional vaccinations. His arm contortions returned. Trystan had muscle spasms, developmental delays, seizures, dystonia, and other neurologic issues. In 2014, Trystan was diagnosed with Leigh’s syndrome, a severe neurological disorder that often presents in the first year of life, is characterized by progressive loss of mental and movement abilities, and typically results in death. Genetic testing showed that Trystan has two associated disease-causing mutations.
His parents sought compensation under the Vaccine Act, 42 U.S.C. 300aa–1. The Claims Court upheld determinations that Trystan did not experience neurologic deterioration until many weeks after his 2009 vaccination and that Trystan’s genetic mutations solely caused his Leigh’s syndrome. The Federal Circuit reversed. Because the contortions began within two weeks of his vaccinations, Trystan has shown a logical chain of cause and effect between his vaccination and his neurodegeneration, satisfying his burden. He is entitled to compensation unless the Secretary establishes the injury was due to factors unrelated to the vaccine. There is no evidence that Trystan’s mutations would have resulted in the same progression and severity of his Leigh’s syndrome absent the vaccine.